Berth-ventilator.



R. W. BURNETT. BERTH VEN'IILA'IOR.- APPLIOATION FILED 111111.13, 1913.

Patented Feb. 9, 1915.

`of. apartments occupied by people for sleepstraps, the louvers of EnsTATEs PATE-v, i l

mennen-WEBB '-nunnn'rr, or MoNrREAnycunBnc, CANADA.

Application .tiled March 13.

To all 'whom ztrmay concern.: l Be it known that I, RrcHAnnWEB BUR-YNET'I', of the city of Montreal, in the Prov. ince of Quebec, Dominionof Canada, a citi zen of the United States of America, have inventedcertain new and useful Improvef ments in Berth-Ventilators; and I dehereby declare that the following is a full, clear,

and exact description of the same.

The invention relates to the ventilation ing or resting and moreparticularly to berths or Staterooms. of passenger coaches andsteam-boats. A source of great discomfort to passengers occupyingapartments-of this nature such as berths in sleeping coaches, etc., isthe inability to obtain proper ventilation without exposing the occupantto view. -This is 'because of the fact that the windows areunsatisfactory and although the aisles of the cars are easilyventilated, this fresh air may not be utilized, asthe curtains must bekept closed to screen the passenger from view. I have discovered thatthis fresh air from the aisles can be directed into the berth bymounting deflectors in -the curtains. I Aam aware that horizontallouvers have been tried but they have two serious defects in that theycan be seen through at certainv angles, and they do not intercept thepassing fresh air of the aisle and deflect `it therethrough.

According to my invention a plurality of parallel vertically disposedand nested and relatively spaced louvers of angular crosssection aremounted in an opening in each curtain and connected together byresilient one curtain of each pair facing oppositely to those in theother curtain of the pair in order that the louvers in one curtain may'deflect air into the berth and the louvers in the other curtain deectair out of the berth thus securing proper circulation. The resiliency ofthe straps permits the undulations of the curtains due to even slightdraft of air through the coach to undulate the ventilator and move thelouvers successively into more exposed positions within the car and thusmore effectively intercept the air and deflect it into the berth. rlhisfiexibility of the ventilator has advantagestherefore. The angular formof the louvers presents angular passages between them which, when thelouvers are relatively spacedV a distance equal to or less i-*Specification of Letters Patent. i f

r to the direction of y ,l Patented ren.- 9,1915. 1913.Yserial1\ro.`754.,134.` f

depth of a louver, cannot be seen through from any position, and theselouvers may therefore be disposed vertically and consequently at rightIangles movement of the air in -the aisle, the effect being that freshair is intercepted and deflected into the berth.

h For full `comprehension, however, of my invention companying drawingsforming a part of this specification in which similar referencecharacters indicate the same parts, and wherein:

Figure 1 illustrates the curtains of a berth in elevation and furnishedwith my deflectlng louvers; Fig. 2 is a horizontal sectional view takenon line II H Fig. 1;' Fig. 3 is an enlarged horizontal sectional view ofone than the transverse of the sets of louvers; and Fig. 4 is a detail Aperspective view of one ofthe louvers re'- moved.

The side of the coach is indicated at b, the windows at c, seats at dand curtains at e. Theselparts may all be as usual and are not describedin detail, the curtains having rectangular openings k cut therein forreceiving the louvers.

'Each louver is formed from sheet metal or other suitable material andof Wedge form with externally concaved sides o, the free edge of one ofwhich is llanged as at p, the other being curled to form a bead g forstrengthening purposes, and, at the same time, preventing accident byblunting the edge. The louvers of each set are connected together and tothe curtain at the upper -and Ilower edges of the opening k by strapsreference must be had to the ac- Y The louvers of one curtain of eachpair being arranged to face oppositely to the llouvers in the othercurtain of the pair not only secures a proper circulation within theberth but enables ventilation to be obtained no matter in Whichdirection the car may be traveling. What I claim is as follows 1.v Aventilator comprising a plurality of vertical nested and relativelyspaced louvers of angular cross-section, the apex of each louverextending Within the adjoining louver.

2. A ventilator for berths of passenger 5 coaches and the likecomprising a curtain' havinga pair of openings therein, a series ofvertical louvers disposed across each of said openings, said louversbeing of angular cross-section, the louvers of one series being 10arranged to face oppositely tothe louvers

